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ACS-Aluminum Clad Steel Strand


ALUMINUM CLAD STEEL WIRE applied in core of aluminum stranded wire, aluminum clad steel stranded wire, cable compound overhead ground lead.



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Aluminum Clad Steel Wire and Strand for Aluminum Conductors, Aluminum-Clad Steel Reinforced

Application

Manufacture of Overhead Bare Conductor, OPGW, Ground Wire,Overhead Ground wire, Messenger wire, Guy wire, Formed wire for protecting, Terminating and Splicing Transmission and Distribution lines,Shield wire Protecting Transmission lines against lightning damage fence, barber wire and hardware.

Aluminum-Clad steel Wire and Strand is used by Power Utilities as well as Formed Wire and Optical Ground Wire Manufacturers.

Standard

ASTM B416

DIN 48201

IEC61232

GB/T 17937-1999

ASTM B502-93

AS1222.2-92

ASTM B415

ASTM B502

Class

14SA 20SA Type A&B 27SA 30SA 40SA

Features

Aluminum-clad steel wire outlasts other options by as much as 200% in corrosive environments, significantly lowering maintenance and replacement costs. When compared to solid aluminum wire, aluminum clad steel wire offers tremendous savings.

Aluminum-clad steel wire overhead ground wire has excellent corrosion resistance. Its strength and conductivity remain unchanged in any atmosphere where aluminum is satisfactory, especially those known to be corrosive from industrial or atmospheric conditions.

This assurance against corrosion is obtained through the application of a thick covering of pure aluminum which provides a substantial barrier of protective metal. The minimum cladding thickness of Aluminum-clad steel wire is 10% of the radius of the wire. the cladding has a continuous, strong metallic bond to the steel core that will not crack or flake.

Aluminum-clad steel wire also provides strength greater than or equal to other overhead ground wires. For commonly used wire sizes, the tensile strength of the individual wire can approach 200,000 pounds per square inch. When used in a strand for overhead ground wire, this high strength permits greater span lengths, less sag and heavier loads under storm loading conditions.

Directly related to strength and sag performance is the lighter weight of aluminum clad steel wire. Due to its thick cladding of aluminum, Aluminum-clad steel wire is 15% lighter that a steel strand of equivalent size. This lighter weight, combined with high strength, permits aluminum clad steel wire to be installed to the same sags as steel with correspondingly lower tensions and tower stresses on the towers or supporting structures.

ASTM B416-American Standard

Code Number Area No. of wires Diameters Weight Rated Strength DC Resistance
mm2 wire conductor kg/km kN ohm/km
3 No 5 Awg. 50,32 3 4,62 9,96 334,1 54,42 1.699
3 No 6 Awg. 39 ,00 3 4,11 8,87 265,0 45,74 2.142
3 No 7 Awg. 31,65 3 3,67 7,90 210,1 38,36 2.701
3 No 8 Awg. 25,10 3 3,26 7,03 166,7 32,06 3.406
3 No 9 Awg. 19,90 3 2,91 6,26 132,2 25,43 4.294
3 No 10 Awg. 15,78 3 2,59 5,58 104,8 20,16 5.415
7 No 5 Awg. 117,40 7 4,62 13,90 781,1 120,27 0,7426
7 No 6 Awg. 93,10 7 4,11 12,40 619,5 101,14 0,9198
7 No 7 Awg. 73,87 7 3,67 11,00 491,1 84,81 1.16
7 No 8 Awg. 58,56 7 3,26 9,78 389,6 70,88 1.463
7 No 9 Awg. 46,44 7 2,91 8,71 308,9 56,20 1.844
7 No 10 Awg. 36,83 7 2,59 7,76 245,1 44,58 2.325
7 No 11 Awg. 29,21 7 2,30 6,91 194,4 35,35 2.932
7 No 12 Awg. 23,16 7 2,05 6,16 154,2 28,03 3.697
19 No 5 Awg. 318,70 19 4,62 23,10 2129,0 326,39 0,2698
19 No 6 Awg. 252,70 19 4,11 20,60 1688,0 274,55 0,3402
19 No 7 Awg. 200,40 19 3,67 18,30 1339,0 230,18 0,4290
19 No 8 Awg. 158,90 19 3,26 16,30 1062,0 192,41 0,5409
19 No 9 Awg. 126,10 19 2,91 14,50 842,0 152,58 0,6821
19 No 10 Awg. 99,96 19 2,59 12,90 667,7 121,00 0,8601
37 No 5 Awg. 620,60 37 4,62 32,30 4170,0 635,43 0,1394
37 No 6 Awg. 492,20 37 4,11 28,80 3307,0 534,85 0,1757
37 No 7 Awg. 390,30 37 3,67 25,70 2623,0 448,09 0,2216
37 No 8 Awg. 309,50 37 3,26 22,90 2080,0 374,67 0,2794
37 No 9 Awg. 245,50 37 2,91 20,30 1649,0 279,11 0,3523
37 No 10 Awg. 194,70 37 2,59 17,90 1308,0 235,61 0,4443
MORE

DIN 48201-German Standards

Code Number Area No. of wires Diameters(mm) Weight Rated Strength DC Resistance
mm2 mm2 wire conductor kg/km kN ohm/km
25 24.25 7 2.1 6.3 162 31.56 3.546
35 34.36 7 2.5 7.5 229 44.72 2.499
50 49.48 7 3 9 330 64.4 1.736
70 65.81 19 2.1 10.5 441 85.65 1.313
95 93.27 19 2.5 12.5 626 121.39 0.925
120 116.99 19 2.8 14 785 152.26 0.737
150 147.11 37 2.25 15.7 990 191.46 0.587
185 181.62 37 2.5 17.5 1221 236.38 0.476
240 242.54 61 2.25 20.2 1635 299.05 0.357
300 299.43 61 2.5 22.5 2017 369.2 0.289
MORE

IEC61232-International Electrotechnical Commission International Standards

Class 20SA 27SA 30SA 40SA
Type A B
Tolerance on diameter Ø ≥ 2,67 mm ± 1,5% ± 1,5% ± 1,5% ± 1,5% ± 1,5%
Ø < 2,67 mm ± 0,04 mm ± 0,04 mm ± 0,04 mm ± 0,04 mm ± 0,04 mm
Minimum thickness of aluminium clad (% of radius) 8% if Ø < 1,80 mm 14% 15% 25%
10% if Ø ≥ 1,80 mm
Nominal density at 20°C (g/cm³) 6,59 6,53 5,91 5,61 4,64
Resistivity at 20°C max. (nΩ x m) 84,80 84,80 63,86 57,47 43,10
Conductivity (IACS) 20,3% 20,3% 27% 30% 40%
Final modulus of elasticity (GPa) 162 155 140 132 109
Coefficient of linear expansion (K-1) 13,0 x 10-6 12,6 x 10-6 13,4 x 10-6 13,8 x 10-6 15,5 x 10-6
Constant-mass temperature coefficient of resistance (K-1) 0,0036 0,0036 0,0036 0,0038 0,0040
MECHANICAL PROPERTIES
class type nominal diameter (mm) min. tensile strength (N/mm²) min. stress at 1% extension elongation torsion test (min. twists)
20SA A 1,24 3,25 1340 1200 1,5% 20
3,26 3,45 1310 1180
3,46 3,65 1270 1140
3,66 3,95 1250 1100
3,96 4,10 1210 1100
4,11 4,40 1180 1070
4,41 4,60 1140 1030
4,61 4,75 1100 1000
4,76 5,50 1070 1000
B 1,24 5,50 1320 1100
27SA 2,50 5,00 1080 800
30SA 2,50 5,00 880 650
40SA 2,50 5,00 680 500
MORE

GB/T 17937-1999-China national standards, Guobiao standards (for AS wires)

CLASS TYPE Nominal Diameter Min. Tensile Strength( Mpa ) Stress at 1.0% Extension( Mpa ) Resistance at 20 ℃ ㎜²/m≤
LB14 2.00<d<3.50 1580 1340 123.15(14%IACS)
    3.50<d<5.00 1500 1280  
    1.24<d<3.25 1340 1200  
    3.25<d<3.45 1310 1180  
    3.45<d<3.65 1270 1140  
    3.65<d<3.95 1250 1100  
LB20 A 3.95<d<4.10 1210 1100 84.80(14%IACS)
    4.10<d<4.40 1180 1070  
    4.40<d<4.60 1140 1030  
    4.60<d<4.75 1100 1000  
    4.75<d<5.50 1070 1000  
  B 1.24<d<5.50 1320 1100  
LB23   1220 980 74.96(14%IACS)
LB27 2.50<d<5.00 1080 800 63.86(14%IACS)
LB30   880 650 57.47(14%IACS)
LB35 2.50<d<5.00 810 590 49.26(14%IACS)
LB40   680 500 43.10(14%IACS)
MORE

GB/T The Physical Constant of AS wires

Conductivity %LACS Resistivity At 20℃ ㎜² /m≤ Modulus of elasticity (Gpa) Coefficient of Linear expansion Kֿ¹ Coating Thickness Ratio of Cross Sectional Area
ATT MAT
14 123.15 170 12.0×10-6 3.4 2.2 13:87
20.3 84.8 162 12.6×10-6 6.7 5 25:75
23 74.96 150 12.9×10-6 8.2 5.5 30:70
27 63.86 140 13.4×10-6 10.25 7 37:63
30 57.47 132 13.8×10-6 12.25 7.5 43:57
35 49.26 122 14.5×10-6 15.4 10.3 52:48
40 43.1 109 15.5×10-6 19.2 12.5 62:38
MORE

ASTM B502-93-American Standard of Aluminum Clad Steel Wires

Nominal Diameter Calculated Cross Section Area(㎜²) Min Tensile Strength (Mpa) Calculated Breaking Load (KN) Min Coating Thickness DC Resistance at 20℃ ㎜² /m≤ Weight (kg/km)
mm AWG
2.052 12 3.307 1340 4.45 0.103 25.64 21.8
2.304 11 4.169 1340 5.61 0.115 20.34 27.49
2.589 10 5.26 1340 7.07 0.13 16.12 34.66
2.904 9 6.633 1340 8.92 0.145 12.78 43.65
3.264 8 8.367 1340 11.2 0.163 10.14 55.14
3.477 7 9.495 1310 12.4 0.174 8.93 62.57
3.665 7 10.55 1280 13.5 0.183 8.04 69.48
3.934 6 12.16 1240 15.1 0.197 6.93 80.13
4.115 6 13.3 1210 16 0.206 6.38 87.62
4.392 5 15.15 1170 17.7 0.22 5.6 99.84
4.62 5 16.76 1140 19.1 0.231 5.06 110.5
4.775 4 17.91 1100 19.7 0.239 4.73 118
5.189 4 21.15 1070 22.6 0.259 4.01 139.34
MORE

AS 1222.2-92-Australia Standard of Aluminum Clad Wires

Diameter   Cross Section(㎜²)   Unit Length Weight(kg/km) Min Breaking Load(kN) Min Tensile Strength (Mpa) Resistance at 20℃ ㎜ ²/m≤
  Nominal   Max   Min
2.75 2.791 2.709 5.94 39.1 7.96 1340 14.3
3 3.045 2.995 7.069 46.6 9.47 1340 12
3.25 3.299 3.201 8.296 54.7 11.1 1340 10.2
3.75 3.806 3.694 11.04 72.8 13.8 1250 7.7
4.25 4.313 4.186 14.19 93.5 16.7 1180 5.98
MORE

ASTM B 415-02 1, Tensile Requirement

Nominal Diameter, in./mm Size, AWG 20.3% 27% 30% 40%
psi MPa psi MPa psi MPa psi MPa
0.2043 5.19 4 155 000 1070 125 000 862 102 000 703 80 000 552
0.1880 4.78   160 000 1100 129 000 889 106 000 731 84 000 579
0.1819 4.62 5 165 000 1140 133 000 917 110 000 758 88 000 607
0.1729 4.39   170 000 1170 137 000 945 114 000 786 92 000 634
0.1620 4.11 6 175 000 1210 141 000 972 114 000 786 96 000 662
0.1549 3.93   180 000 1240 145 000 1000 118 000 814 96 000 662
0.1443 3.67 7 185 000 1280 150 000 1034 122 000 841 98 000 676
0.1369 3.48   190 000 1310 154 000 1062 126 000 869 98 000 676
0.1285 3.26 8 195 000 1340 156 000 1076 128 000 883 99 500 686
0.1144 3.91 9 195 000 1340 156 000 1076 128 000 883 99 500 686
0.1019 2.59 10 195 000 1340 156 000 1076 128 000 883 99 500 686
0.0907 2.30 11 195 000 1340 156 000 1076 128 000 883 99 500 686
0.0808 2.05 12 195 000 1340 156 000 1076 128 000 883 99 500 686
MORE

ASTM B 415-02 2,Physical Constants

% Conductivity Density at 20℃ Modulus of Elasticity psi Coef. of Linear Exp. Temperature Coef. of Resistance
20.3 0.2381 lb/in3 (6.59 g/cm3) 23.5×106 (162 GPa) 0.0000072/°F (0.0000126/℃) 0.0020/°F (0.0036/℃)
27 0.2135 lb/in3 (5.91 g/cm3) 20.3×106 (140 GPa) 0.0000077/°F (0.0000134/℃) 0.0020/°F (0.0036/℃)
30 0.2027 lb/in3 (5.61 g/cm3) 19.1×106 (132 GPa) 0.0000079/°F (0.0000138/℃) 0.0021/°F (0.0038/℃)
40 0.1676 lb/in3 (4.64 g/cm3 ) 15.8×106 (109 GPa) 0.0000089/°F (0.0000155/℃) 0.0022/°F (0.0040/℃)

ASTM B 415-02 3, Wire Diameter Variations

Specified Diameter, in. Permissible Variations in Specified Diameter, plus and minus
0.2043 to 0.1000,incl 1.5%
0.1000 to 0.0800,incl 0.0015 in. (0.038mm)

ASTM B 415-02 4, Aluminum Thickness and Resistance

% Conductivity % of Nominal Wire Radius D.C. Resistance at 20℃
20.3 10% 51.01 Ω·cmil/ft
27 14% 38.41 Ω·cmil/ft
30 15% 34.57 Ω·cmil/ft
40 25% 25.93 Ω·cmil/ft

ASTM B 502-02 Aluminum-Clad Steel Core Wire Tensile Requirements

Nominal Diameter   in.(mm) Stress at 1% Extension min. psi(MPa) Ultimate Tensile Strength min. psi(MPa) Elongation min %,10in. (250mm)
0.0770 to 0.1289 (1.956 to 3.274).,incl 175 000(1206) 195 000(1344) 1.5
0.1290 to 0.1396 (3.275 to 3.477).,incl 170 000(1172) 190 000(1310) 1.5
0.1370 to 0.1443 (3.478 to 3.665).,incl 165 000(1137) 185 000(1275) 1.5
0.1444 to 0.1549 (3.666 to 3.934).,incl 160 000(1103) 180 000(1241) 1.5
0.1550 to 0.1620 (3.935 to 4.115).,incl 160 000(1103) 175 000(1206) 1.5
0.1621 to 0.1729 (4.116 to 4.392).,incl 155 000(1068) 170 000(1172) 1.5
0.1730 to 0.1819 (4.393 to 4.620).,incl 150 000(1034) 165 000(1137) 1.5
0.1820 to 0.1880 (4.621 to 4.775).,incl 145 000(1100) 160 000(1103) 1.5

ASTM B 502-02 Wire Diameter Variations

Nominal Diameter in.(mm) Permissible Variations in Nominal Diameter
0.0770 to 0.0999 (1.956 to 2.537),incl 0.0015in,(0.038mm)
0.1000 to 0.1880 (2.538 to 4.775),incl 1.5%

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